HPLC Method for Analysis of Chlorpyrifos (Dursban) on Newcrom B Column on Alltesta™

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Chromatogram

Description

· High Performance Liquid Chromatography (HPLC) Method for Analysis of Chlorpyrifos-methyl (Dursban)

Chlorpyrifos , also known as Dursban , is a highly toxic organophosphate with the chemical formula C 9 H 11 Cl 3 NO 3 PS . It works through interrupting the electrochemical processes in nerves.  This leads to a build-up of acetylcholine, which leads to paralysis and eventual death.

Chlorpyrifos-methyl (Dursban) can be retained and analyzed using the Newcrom B stationary phase column. The analysis utilizes an isocratic method with a simple mobile phase consisting of water and acetonitrile (MeCN) with ammonium formate as a buffer. Detection is performed using UV.

Method Parameters

Mobile PhaseMeCN – 70%
BufferAmmonium Formate
Flow Rate1.0 mL/min
DetectionUV 275 nm
Class of CompoundsPesticide
Analyzing CompoundsChlorpyrifos-methyl (Dursban)

HPLC Column Used

Newcrom B, 4.6 x 150 mm, 5 µm, 100 A, dual ended